| 摘要 |
Provided is a welding apparatus with a multi-welding method capable of integrating a TIG welding function with a MIG welding function by allowing a TIG welding torch and a MIG welding torch to alternately receive power and welding gas through single power equipment and gas supply equipment. The present invention includes: a welding power device which supplies direct power current/voltage required for arc welding and which compensates current/voltage values by measuring and calculating that an output voltage value falls as the arch welding is performed; a gas supplying unit supplying argon gas (Ar) and carbon dioxide gas (CO2) for arc welding to a selection switching unit; the selective switching unit which selectively supplies the direct power current/voltage by switching a MIG welding function and a TIG welding function to selectively switch the functions and which selectively supplies the carbon dioxide gas or the argon gas; a feeding device which feeds a wire to the MIG welding torch according to the MIG welding function and which applies a plus voltage applied by selective switch of the selective switching unit to the MIG welding torch; and an ignition device which receives the direct power voltage applied by selective switch of the selective switching unit according to the TIG welding function and converts the direct power voltage into a high voltage for generating TIG welding arc and which applies the converted high voltage to a base material for TIG welding and the TIG welding torch. [Reference numerals] (100) Welding power device; (200) Remote controller; (300) Gas supplying unit; (400) Selection switching unit; (600) Wire feeding device; (800) Ignition device |
